Changeable printing form



June 3A, 1924.

1,496,167 H. QOSBORN HANGEABLE PR INT ING FORM Filed March' 1o, 1922ZSheetS-Shee?. 1

W @@Qgfmf, gigi/ Mmm,

June 3 1924..

H. C. OSBORN CIHNGEABLE PRINTING FORM Filed March 1o. 1922 2Sheets-sheer 2 Patented .lune 3, 1924.

HENRYcmsBon-N, or CLEVELAND, olmo,l Assrenon 'ro THEAMERICANMUI'LTIGRAYH' PATENT OFFICE.)

COMPANY, OF CLEVELAND, OHIO, A CORPORATION OFOHIO." r

Application led March 105.19.22. Serial N o; 5112532'.

T @ZZ-whom t may concern.'

Beit known .that I, HENRY C. OsBoRN,

a citizen of the United States, residing `at Clevela11 d- ,k inthecounty of Cuyahoga and State of Ohio, have invented a certain new anduseful Improvement in Changeable Pri-ntingf,Forms, of which thefollowing is a full, clear, and exact description, referencel being hadto the accompanying drawlugs-.a

This invention relates to a printingmachine-andparticularly to thatcharacter of printingmachine which employs a rotary printing drum, asforexample, a multigraph.

The general object of the invention is to provide a printingmember whichisadaptedyfor use in connection with a printing drum and which may beremovably mounted on the drum.

A specific object of the invention is to provide, for use inl connectionwitha rotary printingycdrum, a removable impres sion member havingvtypecharacters thereon, the member being curved to conform to thecurvatureof the printing drum.

A further object of thisV invention is to.

provide a removable printing form which may be used in connection withprinting drums having type holding means thereon, the removable formbeing provided with printing characters at an angle to the lines of typecarried by the printing drum.

A more specific object of the invention is to provide a curved holdingmember which is adapted to be secured to a printing drum, the4 memberhaving projections thereon, whereby channeled embossed strips may besecured to the drum.

An additional object of the inventionv is toA provide a novel form oftype holding member for`v va printing `drum wherein the type channelsare formed by folding and bending a sheet of metal.

Otherl objects of the invention will be apparenty `from the followingdescription taken in connection with the accompanying drawings, whereinFig. l is a perspective view of a printing strip constructedaccordingtoy my invention; Fig. 2 is a perspective view'o'f theremovable holding member for the printing strip; Fig. 3 is a fragmentaryplan of a rotary printing drum embodying features of myV invention; Fig.4 isa fragmentary end view of a printing drum showing .means vforlockinga :removablerprintingf character holding member in position; Figa5 isy anfend view of a portion of a. rotary printingdruni; Fig. 6 is asection Online; @f6-Figi. 3; Fig,;17 isv a .-detailin elevation, 1

showmgmy invention applied to a` solid drum; Fig. 8 isa fragmentarysection onan enlarged, scale of a; printing4 drum-,1` and associatedparts constructed Vaccording to my mvention.

Referring'fto the drawings .by referencech-aracters, I have shown at l()a printing' drum which embodies one ofthe yfeatures of my invention.-This drum may be rotatably mounted on ay suitable shaft. The peripheryof the drum is shown as provided with a type bed 12 (see Fig... 8)`indicated as comprising va sheet metal plate bent` to form a pluralityof slotsl defined ybyvT heads 14 f which are attached t-o the bodyportion of thebedl2by means of the webs 15'. In making the sheet metaltype bed the mate-A rial is bent to the proper shape and tightlycompacted. Suitable impression members,V

, requirements, I employ the following.

A curved holder for a printing member is indicated at 20. This holder isshown as curved to fit the periphery of a drum and it may be fitteddirectly over the rails of a multigraph or' other machine- L The holdingmember may be secured to the drum in any desired manner. It may beprovided with' lugs 2l at each end each of which is adapted to beengaged by a slot in the end of resilient strap-like metal member 22,the ip nstruction aty one end being illustrated in The end-ref the.straps 22 may be foldedv over to engage a lever member 23 with which itmay be moved to position. The straps 22 are preferably made of ratherstiff metal so that the mere act of forcingv the levers 23 to positionbehind the shoulder of the rails serves to hold the straps .se

cated as provided with a plurality of engaging tongues formed byupstruck projections 25. The projections are severed from the body ofthe holder by opposed curved slits 26. This leaves the body of theprojection connected with the body of the holder by narrow neck portions28.

The projections just described are adapted to serve as securing meansfor acurved printing member which constitutes one of the features of myinvention. This curved -printing member which is shown for example, in Fig. 1, comprises a strip 3() of metal or other material having printingcharacters 31 embossed in its upper surface while the sides of themember are indicated as turned down and inwardly, as at 33, to provideengaging fianges. These flanges maj7 be notched, as at 34, to allow easein manufacture and to allow the strip 30 to be curved as desired. A.suitable stop lug 36 on the end of the printing strip 30 may serve toaccurately position the strip in use.

The embossed strips 25 may comprise single lines of type, or two or morelines may' be aranged on one bed. In the latter case `the impressionmember would extend over two or more rows of holding members 23.

The inwardly projecting flanges 33 on the strip are adapted to extendbeneath the projections 25 on the liolding'member and thus securely holdprinting members in place. The printingl strip is secured to the holdingmember by a sliding movement, since the inaterialis too rigid to permitthe strip being otherwise placed in position.

I preferably make the type 16 carried by the rails of the drum of suchheight that they will be on a level with the printing characters B1 onthe printing strips 30 when the latter are in place on the holder 20,thus enabling a uniform impression to be secured. j

In F ig. 4 it will be noted that the type rails 14' are indicated assolid members and are not made of sheet metal. Such solid metal railsare well known in the art and form no part of my present invention, al

though I wish it to be understood that the holding member and theembossed printing strip are adapted for use on either the sheet metal orthe solid metal rails.

In some instances, it is desirable to mount the holding member 20directly upon a printing dium instead of placing it over type rails.Such a construction is shown in Fig. 7 wherein a portion of a drum isindicated at 50, a holding` member 20 being seated thereon while aprinting strip 80 having characters 31 thereon is indicated as securedto the holding member. In this modification, the holding member may besecured to the drum by the fastening device similar to that shown inFig. 3 and comprising as shown in Fig. 7 a stud 21l on the holdingmember 20, a short strap 22 and a lever member 23 which engages anotch51 in the drum 50.

My invention is particularly adapted for use when a quick change in theprinting characters carried on the drum is required, since when using mydevice the type need not be removed singly but'an entire linear group oflines may be removed and another quickly substitut-ed.

Having thus described my invention, I claim:

1. The combination of a rotary drum, a type holding member secured tothe drum and having a plurality of separated projections thereonextending above the surface of the member and arranged in a circuni'feiential row, and an embossed print strip extendingcircumferentially and overextending beneath the laterally overhangingportions of the holding means.

1..A rotary printing drum havingtype holding rails thereon, and anadditional printing character holding member secured over the rails,said member having circumferentially extending mea-ns thereon forengaging a printing member. v

o. A character printing strip comprising a body portion havingcharacters thereon,A

and a pair of side flanges, said flanges being notched. j

6. An embosed sheet metal character printing strip comprising a topportion and a pair of side flanges, the continuity of said side flangesbeing interrupted, whereby the strip may be made to conform to thecurvature of a printing drum.

7. A printing frame comprising a holder adapted to be secured to aprinting machine and an impression member secured to the holder, saidimpression membercomprising a flanged metal strip having embossedprinting characters thereon, the flanges of said strip being notched.

8. In combination with a printing ma- `lying said projections and havingflanged and extending circumferentially of the drum for securingprinting characters thereto.

10. In combination with a printing drum having T rails thereon, aprinting member mounted on said T rails, resilient clips to hold saidplate in position, surface projections carried by said plate, and acharacter printing slip secured to the plate by said projections.

11. In combination, in a printing machine, a rotary drum, a type holdingmember secured to the drum and having projections extending above thesurface thereof, said projections being arranged in a straight line, anda printing member arranged to lit upon the projections and havingportions which extend beneath the projections.

12. In a printing machine, a rotary drum, means on the drum for securingtype thereto, said means comprisin(y a strip of material bent to provideal curved portion to rest on the drum, and a plurality of spacedupwardly extending portions, said upwardly extending portions beingflattened to provide T-shaped rails.

13. A printing strip comprising a top portion adapted to be bent toconform to the curvature of a printing cylinder, printing` characters onsaid top portion, side ianges on each side of said top portion, saidflanges being interrupted, whereby the top may be bent, said flangebeing bent toward each other to alTord holding portions,

whereby the printing strip may be held in position.

14. In combination, a printing member having a bed thereon, a line ofimpression members extending longitudinally of said bed, a holdingmember secured transversely oi said bed, said holding member havingmeans thereon for engaging an impression member, a second impressionmember engaged by said means, said last mentioned impression memberextending transversely of said first mentioned impression member.

15. The combination of a printing machine and an impression member,means to lock said impression member to said machine, Said meanscomprising a strip of material having means at one end for engaging theimpression member and having a locking portion for engaging the printingmachine.

16. As a means for securing an impression member to a printing machine,a strip of material having an operating member at one end and having atransverse fork at the other end for engaging an impression member.L

17. In a printing machine, thecombination of a rotary printing drumhaving T rails thereon adapted to receive type, grooved type mounted onsaid rails,said rails extending in a direction parallel to the aXis olthe printing drum, a sheet metal plate overlying some of said railsbeyond the type and having projections arranged circumferentially aprinting member having impression characters thereon secured to saidprojections said characters extending in a direction circumferentiallyof the drum, the height of the grooved type in the rails andl theimpression characters on the circumfer ential printing member being thesame whereby a clear impression may be had.

In testimony whereof, I hereunto aHiX my signature.

HENRY C. OSBORN.

